Eaton Elocker - Dana 44 30-Spline

The Eaton ELocker Dana 44 30-Spline differential carrier delivers aggressive locking performance for serious off-road and high-demand driving applications. Manufactured by Detroit Locker-TracTech, this fully spooling locker automatically locks both axle shafts together under load, providing maximum traction when you need it most while still allowing normal differentiation during highway driving and tight turns. The 30-spline design is engineered for Dana 44 axle housings with 3.92 gear ratios and up, making it the go-to choice for rock crawling, desert racing, and recovery operations where consistent torque delivery to both wheels is critical.

Built from steel construction, this differential carrier weighs 29.65 lbs and is designed as a direct replacement for factory open differentials. The ELocker technology uses a mechanical spooling mechanism that engages instantly when torque demand increases, unlike clutch-type lockers that can slip or chatter under extreme load. The 30-spline specification ensures compatibility with standard Dana 44 shafts commonly found in full-size trucks, SUVs, and specialty off-road vehicles. Installation requires proper axle setup and genuine replacement parts to ensure bearing preload and ring-gear mesh specifications are met according to manufacturer standards.

This locker is built for operators who demand predictable on-demand locking without electronic complexity or air actuation. Rock crawlers, expeditionary vehicle builders, and off-road enthusiasts running Dana 44 housings in trucks and buggies rely on the ELocker for its reliability under extreme articulation and sustained traction demand. The mechanical design means no air lines to fail, no electrical solenoids to short out, and no hesitation when full lock-up is required. Proper installation with quality axle shafts, U-joints, and support components is essential to realize the full benefit of this locker and protect your drivetrain investment.